Doesn’t the OnePlus 7 support VoLte?
It's available VoLTE and VoWifi.
It works. Plz consult your network operator. There might be some issue related to setting.
Settings> Wi Fi & Internet > SIM & Network > Preferred network type > 2G/3G/4G ( Auto)
My phone has no option of VOLte! It has no switch to activate it.
Who's your carrier?
"Grameenphone" from Bangladesh.
Just as I suspected.
Survey: Original Protective Case and Film for OnePlus 8 Series and Nord
by Tom B., 2021-01-13